ZyXEL g-2000 plusv2 Guia Do Utilizador
ZyXEL G-2000 Plus v2 User’s Guide
Chapter 33 Firmware and Configuration File Maintenance
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33.2.5 Backup Configuration Using TFTP
The ZyXEL device supports the up/downloading of the firmware and the configuration file
using TFTP (Trivial File Transfer Protocol) over LAN. Although TFTP should work over
WAN as well, it is not recommended.
using TFTP (Trivial File Transfer Protocol) over LAN. Although TFTP should work over
WAN as well, it is not recommended.
To use TFTP, your computer must have both telnet and TFTP clients. To backup the
configuration file, follow the procedure shown next:
configuration file, follow the procedure shown next:
1 Use telnet from your computer to connect to the ZyXEL device and log in. Because TFTP
does not have any security checks, the ZyXEL device records the IP address of the telnet
client and accepts TFTP requests only from this address.
client and accepts TFTP requests only from this address.
2 Put the SMT in command interpreter (CI) mode by entering 8 in Menu 24 – System
Maintenance.
3 Enter command “sys stdio 0” to disable the SMT timeout, so the TFTP transfer will not
be interrupted. Enter command “sys stdio 5” to restore the five-minute SMT timeout
(default) when the file transfer is complete.
(default) when the file transfer is complete.
4 Launch the TFTP client on your computer and connect to the ZyXEL device. Set the
transfer mode to binary before starting data transfer.
5 Use the TFTP client (see the example below) to transfer files between the ZyXEL device
and the computer. The file name for the configuration file is rom-0 (rom-zero, not
capital o).
Note that the telnet connection must be active and the SMT in CI mode before and during the
TFTP transfer. For details on TFTP commands (see following example), please consult the
documentation of your TFTP client program. For UNIX, use “get” to transfer from the ZyXEL
device to the computer and “binary” to set binary transfer mode.
TFTP transfer. For details on TFTP commands (see following example), please consult the
documentation of your TFTP client program. For UNIX, use “get” to transfer from the ZyXEL
device to the computer and “binary” to set binary transfer mode.
33.2.6 Example: TFTP Command
The following is an example TFTP command:
TFTP [-i] host get rom-0 config.rom
where “i” specifies binary image transfer mode (use this mode when transferring binary files),
“host” is the ZyXEL device IP address, “get” transfers the file source on the ZyXEL device
(rom-0 name of the configuration file on the ZyXEL device) to the file destination on the
computer and renames it config.rom.
“host” is the ZyXEL device IP address, “get” transfers the file source on the ZyXEL device
(rom-0 name of the configuration file on the ZyXEL device) to the file destination on the
computer and renames it config.rom.